[openstack-dev] [kolla][release][requirements] providing constraints for transitive dependencies
cboylan at sapwetik.org
Mon Nov 28 03:02:07 UTC 2016
On Sun, Nov 27, 2016, at 06:53 PM, Jeffrey Zhang wrote:
> FWIW, python dependencies are fixed.
> Kolla is using the following command in Dockerfile for source code
> pip install -u /requirements/upper-constrains.txt /nova
I think you need a to use the -c option to set the constraints file.
> then all python dependencies installed will use a fixed version from
Yup, constraints apply to transitive deps as well. Keep in mind you
don't have to use the published upper-constraints either, but they are
an easy way to use a known tested set that works with upstream gating.
> On Mon, Nov 28, 2016 at 10:41 AM, Steven Dake (stdake) <stdake at cisco.com>
> > Hey folks,
> > I get a lot of requests for variance reduction of transitive dependencies
> > in Kolla’s containers. As an example, we build from source nova. Nova
> > itself we can specify a version to install in the containers during build
> > time. Nova’s python dependencies, not so much. Is there a best practice
> > for doing such in the python ecosystem?
> > Binary distributions don’t typically suffer from this problem. They
> > deliver one version of dependencies, and that is what you get. That is
> > what a slew of folks are after with from source container builds. Any
> > advice from the requirements team or release team welcome as the folks on
> > those teams have the most experience with this sort of thing.
> > If this has been asked by someone else in a different context and
> > answered, a pointer to that discussion would work too J
More information about the OpenStack-dev